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SR Suntour

Suspension Seat Post

Suspension Seat Post

Authentic SR Suntour NCX Suspension Seat Post—designed to replace the standard seat post on your VoltBike. Built with integrated suspension, it delivers a smoother, more comfortable ride on any terrain. Adjustable internal coil with 50mm travel and 350mm length.

Option to choose seat post diameter 27.2mm, 30.4 mm, or 31.6mm. Please check your seat post diameter before proceeding with order. Give your VoltBike a feel that's more similar to a full-suspension bike such as our Enduro or Outback bikes.

This model is fitted with the Grey spring with approx. 70-95kg weight limit. Springs for heavier or lighter weight riders can be purchase through Suntour. 

The Urban Step-Thru, and Original Trio bikes use 27.2mm seat posts.

All Yukon 750, Yukon Step-Thru, Yukon V2, Bravo, Bravo Core, Bravo V2, Elegant, Elegant V2 and Kodiak bikes utilize the 30.4mm size. 

Our Mariner, and Mariner Step-Thru models also use 30.4mm posts.

VoltBike models which use the 31.6mm seat posts include Mariner V2, Trio V2, Urban V2, Venture & Venture Step-Thru and Yukon Core.

Please be aware of counterfeit SR Suntour seat posts currently offered at online platforms like Amazon, Walmart and similar. 

Product Compatibility

  • Yukon Core
  • Yukon 750 Limited
  • Yukon V2
  • Yukon V2 Step-Thru
  • Bravo
  • Yukon Step-Thru
  • Bravo Core
  • Bravo V2
  • Elegant
  • Kodiak
  • Venture
  • Trio
  • Mariner V2
  • Elegant V2
  • Mariner Step-Thru
  • Urban V2
  • Venture Step-Thru
$149.00 CAD
$199.00 CAD $149.00 CAD
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Seat Post Diameter
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Frequently asked questions

Some questions and answers are automatically generated.

Does it really smooth out bumpy rides?
Yes. Many reviewers report a significant reduction in vibration and impact from rough roads, gravel trails, and potholes. Several mention it feels like a full-suspension bike now, and one customer with a sensitive back noted it transforms rides from uncomfortable to smooth without needing padded shorts.
Is it easy to install?
Most customers report straightforward installation. Several mention adjusting the internal spring tension themselves to fine-tune comfort, though this is optional and the post performs well out of the box.
Will it fit my VoltBike model?
Compatibility depends on your seat post diameter: 27.2mm (Urban Step-Thru, Original Trio), 30.4mm (Yukon, Bravo, Elegant, Kodiak, Mariner series), or 31.6mm (Mariner V2, Trio V2, Urban V2, Venture, Yukon Core). Check your current seat post diameter before ordering. The product description lists which models use each size.
Does it raise the seat height?
Yes. Reviewers report the suspension post raises the seat approximately 3–4 inches due to the built-in shock. This means you won't need to extend the seat post as far into the tube, which can also improve durability.
How does it compare to cheaper suspension seats?
One reviewer who had tried cheaper options ($30 and $60 alternatives) reported this Suntour is "night and day" better and worth the investment. Another noted the coil spring feels much more plush than previous elastomer-based suspension posts they'd owned.
Is there a weight limit?
The Grey spring included with this model is rated for approximately 70–95 kg (155–210 lbs). If you weigh outside this range, SR Suntour sells alternative springs for heavier or lighter riders that can be swapped in.
Works well on gravel and trails?
Yes. Many reviewers specifically mention improved comfort on gravel trails, rough roads, and uneven terrain. Pairing it with a quality seat further enhances the effect, according to several owners.
Can I adjust the suspension feel?
Yes. The internal coil has adjustable tension, and reviewers note that tweaking this setting makes a noticeable difference in how much bump absorption you feel, allowing you to personalize comfort to your preference.